Tucumilla Formation
# Tucumilla Formation

The Tucumilla Formation is a Tremadocian geologic formation of southern Bolivia. The sandstones, shales and siltstones crop out in the José María Avilés and Eustaquio Méndez Provinces.

## Fossil content

The formation has provided the following fossils:

* Apheoorthis samensis
* Notorthisina notoconcha
* Angelina sp.
* Asaphellus sp.
* Broeggeria sp.
* Bucania sp.
* Dictyonema sp.
* Finkelnburgia sp.
* Jujuyaspis sp.
* Kainella sp.
* Leptoplastides sp.
* Micragnostus sp.
* Parabolina sp.
* Richardsonella sp.
* Shumardia sp.
* Tropidodiscus sp.
